php dateinterval



dateinterval does not support split seconds (microseconds or milliseconds etc.) when doing a diff between two datetime objects that contain microseconds. so you cannot do the following, for example: <?php $d=new datetime(" ::."); $d=new datetime(" ::.");

php dateinterval

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<?php class dateintervalenhanced extends dateinterval { public function recalculate() { $from = new datetime; $to = clone $from; $to = $to>add($this); $diff = $from>diff($to); foreach ($diff as $k => $v) $this>$k = $v; return $this; } } $di = new dateintervalenhanced('pts'); echo "instead of " . $di>format('h:i:s') . creating a dateinterval object. now that we understand what an interval is — it's simply a duration of time — and that iso defines our duration's format, we can start playing around with the php dateinterval class. let's define a predictable duration, create a dateinterval object, and output the result to 

php dateinterval

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the 'a' will return the number of days only when you take a time difference otherwise it will return unknown. you can use 'd' to get the days but it will also return in the case of new \dateinterval('py') as it does not convert years to days. one easy way to get the number of days is to create a datetime at  looks like there was a related bug/feature request, not sure if that ever made it in the trunk. it's not documented (that i can find) either way so probably not safe to use. that said, after some testing it seems that they can be compared, but only after they've been 'evaluated' in some way (doing a var dump 

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if you want an interval that is hours and minutes, simply use the constructor $interval = new dateinterval('pthm');. to break it down p all interval spec strings must start with p (for period). we aren't using any period intervals though so on to t this starts the time spec; h hours; m  parameter, description. format, required. specifies the format. the following characters can be used in the format parameter string: literal ; y year, at least digits with leading zero (e.g ); y year (e.g ); m month, with leading zero (e.g ); m month (e.g ); d day, with leading zero (e.g ); d day (e.g ) 

php dateinterval

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php date and time handling was significantly improved in php . to include a specific add (and subtract) method to datetime . although instead of simply including a text format you must use a dateinterval to represent the duration. in addition the format is slightly different to incorporate the iso   interval_spec. an interval specification. the format starts with the letter p, for "period." each duration period is represented by an integer value followed by a period designator. if the duration contains time elements, that portion of the specification is preceded by the letter t.

php dateinterval

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php dateinterval

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